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authorDenys Vlasenko2017-08-10 12:40:48 +0200
committerDenys Vlasenko2017-08-10 12:40:48 +0200
commitbac929b99b4a9ca0fd16d696175692b6545907c5 (patch)
tree3f576f12aa156a768dfe2191d85cad772ec0383a
parentbc9bbeb2b81001e8731cd2ae501c8fccc8d87cc7 (diff)
downloadbusybox-bac929b99b4a9ca0fd16d696175692b6545907c5.zip
busybox-bac929b99b4a9ca0fd16d696175692b6545907c5.tar.gz
Hopefully fix "will break strict-aliasing rules" warning for get_le32
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
-rw-r--r--include/platform.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/platform.h b/include/platform.h
index b81c59d..c365d5c 100644
--- a/include/platform.h
+++ b/include/platform.h
@@ -260,6 +260,11 @@ typedef uint64_t bb__aliased_uint64_t FIX_ALIASING;
#define put_unaligned_le32(val, buf) move_to_unaligned32(buf, SWAP_LE32(val))
#define put_unaligned_be32(val, buf) move_to_unaligned32(buf, SWAP_BE32(val))
+/* unxz needs an aligned fixed-endian accessor.
+ * (however, the compiler does not realize it's aligned, the cast is still necessary)
+ */
+#define get_le32(u32p) ({ uint32_t v = *(bb__aliased_uint32_t*)(u32p); SWAP_LE32(v); })
+
/* ---- Size-saving "small" ints (arch-dependent) ----------- */